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Cooper Discoverer ST Maxx
When you need all-terrain tires that balance aggressive off-road traction with dependable on-road driving comfort, consider the Cooper Discoverer S/T Maxx for your light truck or SUV.
Cooper Discoverer ST Maxx Features
From one of the biggest names in off-road tire performance comes an all-terrain tire for the ages: the Cooper Discoverer S/T Maxx. Designed to work as hard as they play, Cooper ST Maxx tires have an aggressive tread design backed up by solid overall construction.
To make sure nothing puts a halt to your off-road journey or your workday, Cooper built the ST Maxx with its proprietary Armor-Tek3 technology, which resists punctures, tears and other damage in tough driving environments.
Cooper's 3-ply Armor-Tek3 technology helps reduce vulnerabilities in the tire's carcass, strengthening the tire and reducing the likelihood of serious damage.
But what does that actually do for you?
In a nutshell, when you outfit your light truck or SUV with Cooper ST Maxx tires, you can take point on some of the roughest trails out there without worrying if your tires will hold you back.
But the S/T Maxx is engineered for more than just rugged durability; it also delivers stellar off-road traction thanks to its aggressive, high-void tread pattern, while the dense network of sipes in its tread block work together to add traction and stability in wet road conditions.
Other performance features of the Discoverer S/T Maxx include:
- A hybrid 4-5 tread block pattern that delivers off-road traction while reducing highway road noise and resisting uneven treadwear.
- Added durability is provided by stone ejector ribs, which resist cutting and chipping caused by stone retention.
- Pinned tread blocks allow for studding for extreme winter traction.
- With its all-terrain traction and all-season capabilities, this tire is M+S rated, meaning that it exceeds the RMA's guidelines for a mud and snow tire.
- Non-parallel groove walls provide increased resistance to stone drilling.
Cooper Discoverer S/T Maxx Treadwear and Warranty
Thanks to how Cooper engineered the S/T Maxx's 4-5 hybrid tread pattern and its silica-enhanced tread compound, the ST Maxx resists uneven treadwear. This means you get long-lasting, aggressive all-terrain performance.
However, if you want protection as robust as your new Cooper Discoverer ST all-terrain tires, consider investing in our exclusive Certificates.
Down to 3/32” of wear, our Certificates provide protection for your tires from the driveway to the worksite. And if your tires are ever damaged beyond repair, we'll provide you with a brand new replacement tire.
(You can add our Certificate coverage in the cart of your order.)
Whether you're commuting to a job site, going for a road trip, or leaving the paved road behind entirely, outfit your 4x4 or light truck with the Cooper Discoverer S/T Maxx. From there, you can take on whatever comes your way.
UNIFORM TIRE QUALITY GRADE (UTQG)Uniform Tire Quality Grade
| SECTION WIDTH Measures the width of the tire from sidewall to sidewall, which is mounted on a wheel and inflated. | 275 |
| ASPECT RATIO Determines the sidewall height of the tire, based on the width. | 70 |
| RIM DIAMETER Measures the rim size from top to bottom (in inches). | 18" |
| OVERALL DIAMETER Measures the tire height from top to bottom when mounted on a wheel and inflated. | 33.39" |
| RIM WIDTH RANGE The approved range of rim widths this tire can be safely mounted on. | 7.0" - 8.0" |
| WEIGHT The weight of the tire measured in pounds (weight of tire only). | 60 LBS |
| TREAD DEPTH Measured in /32 of an inch to determine the height of the tread block from top to bottom. | 19/32" |
| LOAD INDEX Determines the weight a tire can carry at maximum air pressure. See load Index chart. | 125 |
| LOAD RANGE Determines the ply rating of the tire. Should be replaced with the same or higher rating. | E1 |
| MAX PSI The max psi is the highest pressure the tire can hold, but should be inflated to your vehicle specifications not exceeding this amount. | 80 PSI |
| SPEED RATING Designation from laboratory testing to determine the maximum speed the tire can travel. Maintain the same speed rating or higher for replacement. | Up to 100 mph |
| SIDEWALL DESC. The sidewall designation to describe the lettering on the sidewall. | Black Side Wall |
| VPN Vendor Product Number | 170070004 |
| GTIN Global Trade Item Number | 029142720515 |
Customer Reviews
F-250
Worst wet weather tire EVER! It’s like driving on black ice when it gets wet. They have been this way since the beginning and only getting worse.
Tacoma
Definitely like how the tires feel and ride. Even with the narrower tire I feel like I its got good road manners. Onky thing im dissatisfied with is how heavy the tire is. I don't think the posted weight for them is accurate at all. Other than that, Looking forward to see how they wear now that my decision was made
2500
Great tires
F-350
Off road, winter mud and deep snow. Third set of these, they're great on and off pavement and on nasty job sites. I use dedicated rims for winter and summer. Have Cooper Strong Hold set for summer. Good handling at 85mph highway. 1999 Ford Super Duty, 7.3L diesel 516,000 miles.
Discovery
These are one of the few tires that fit the vehicle I have (16" rims). I am happy with them but wish there were more tire choices in this size I could compare. As always, the crew at Discount Tire makes the buying and maintenance experience wonderful.